(19)

(11)

EP 0 307 411 A1

(12)

(43) Date of publication: 22.03.1989 Bulletin 1989/12 (21) Application number: 87903663.0 (22) Date of filing: 22.05.1987

(51) International Patent Classification (IPC):  G06F 17/ 30( . ) G06F 17/ 50( . ) (86) International application number: PCT/US1987/001213 (87) International publication number: WO 1987/007410 (03.12.1987 Gazette 1987/27)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (30) Priority: 23.05.1986 US 19860867105 (71) Applicant: ACTIVE ENGLISH INFORMATION SYSTEMS, INC. Canton, IL 61520 (US)	(72) Inventors: PHILLIPS, Clarence, W. Canton, IL 61520 (US) PHILLIPS, William, F. Canton, IL 61520 (US) JACOBUS, Gerry, A. Canton, IL 61520 (US) (74) Representative: Cross, Rupert Edward Blount, et al  BOULT, WADE & TENNANT 27 Furnival Street London EC4A 1PQ London EC4A 1PQ (GB)